Gage-cock.



"J. B. SEAGO.

GAGE COCK.

APPLICATION nun-mui'. 11. 19-15.

1,171,072. 4 Patented Febis, 1916.

VII/III JOEE '3. SEAGO, or min DEE, NORTH CAROLINA.

GAGE-COCK.

Specification of Letters Patent.

Patented Feb. 8, 1916.

Application filed March 17, 1915. Serial No. 14,989.

To all whom it may concern:

Be it known that I, JOHN B. SEAGO, a citizen of the United States, residing at Pee Dee, in the county of Anson and State of North Carolina, have invented certain new and useful Improvements in Grage- Cocks, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in gage cocks, and'it is an object of the invention to provide a device of this general character having novel and improved means whereby the same will be automatically sealed in the event the outer projected portion of the cock should be broken off.

. It is also an object of my invention to provide a device of this character whereby the upper valve seat may be readily reground during the period the coacting boiler is in operation.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved gage cock whereby certam important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be carefully defined in the appended claims.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein is disclosed a longitudinal sectional view taken through a gage cock constructed in accordance with an embodiment of my invention, the coacting boiler being shown in fragment.

As disclosed in the accompanying drawings, 1 denotes a casing adapted to be or the like and having produced in the bore 2 thereof the reversely disposed valve seats 3 and 4, the innermost valve seat 3 having 'coactmg therewith the safety valve 5 adapted to be engaged with its seat under the tension of the pressure within the boiler. Coacting with the outer extremity of the casing 1 and detachably engaged therewith, preferably through the medium of a couphng 6, 1s a barrel 7 having its inner extremity provided with the inwardly disposed annular flange 8, the periphery thereof being threadedand'with which is adjustably engaged the elongated tubular valve member 9, the inner end 10 thereof being closed and adapted to coact with the valve seat 4, hereinbefore referred to, for a purpose which U will hereinafter be more particularly set forth. Projecting from the end 10 at substantially the axial center thereof and longitudinally of the valve member 9 is the needle or finger l1 projecting within the recess or cavity 12 produced in the adjacent extremity of the safety valve 5 and serving to normally mainta1n said safety valve in an open adjustment; It will be readily perceived, how ever, that should the barrel 7 be broken ofi, the tension of the pressure within the boiler willcause the valve 5 to assume immediately a closed position.

The valve member 9 is of such a length asto project beyond the outer extremity of the barrel 7 and to said projected portion is suitably aflixed an operating member '14 whereby requisite movement may be imparted thereto to cause the same to either engage the valve seat 4 or to be removed therefrom. Coacting with the projected extremity of the valve member 9 and'the adjacent end portion of the barrel 7 is a conventional packing nut 15 whereby a steam tight joint or connection is assured.

The outer extremity of the valve member 9 has secured thereto a packing nut 16 through which is threaded the elongated stem 17, the inner extremity whereof being adapted to coact with the valve seat 18 produced within the valve member '9 adjacent the inner end 10 thereof, said stem 17 being of a transverse diameter less than the corresponding diameter of the bore of the mem- "ber 9 so that the fluid passing through the openings 19 disposed through the valve member 9 inwardly of the seat 18 thereof and through the additional openings 20 produced in said valve member 9 adjacent the depending discharge nozzle 21 may have an unobstructed flow when the inner extremity of the stem 17 is adjusted away from the coacting valve seat 18. It is also to be understood that the bore 22 of the barrel 7 has a transverse diameter in excess of the corresponding diameter of the valve member 9.

In order that the stem 17 may have the requisite longitudinal movement imparted.

thereto, ll suitably affix to the outer extremity thereof a conventional operating wheel or member 23.

It will be at once appreciated that the valve seat 18 may be termed the principal valve seat, and in order that the same may be readily ground when the occasion requires without interfering with the operation of the boiler, it will be seen that it is only necessary to adjust the valve member 9 to operativeiy engage the coacting valve seat 4 whereupon flow through by improved gage cool: is prevented and whereupon the stem 17 may be readily removed and a suitable grinding implement disposed within the member 9 to operatively engage the valve i seat 18 for the purpose of grinding the same.

it will also be perceived that with the stem 1'? withdrawn, its engag ng or inner extremlty maybe also ground, as required. I also .llllCl it of advantage to position within the bore 2 cf the casing 1 adjacent the inner extremity thereof the perforate disk 24% which serves as a guide for the safety valve 5 and which also serves as a medium to prevent its displacement from within the bore 2, said safety valve, as herein disclosed, cornprising an elongated shank having disposed at substantially its longitudinal center the outwardly directed annular flange 25. I also find it in practice especially desirable to have the casing 1 formed into two separable sections 26 and 27 detachably engaged one with the other, as indicated at 28, in a conventional manner. It is to be observed that the section 26 of the casing is directly, engaged with the boiler B and is provided with the valve seat 3, hereinbefore referred to, while the second or outer section 27 is provided with the valve seat 4. In the event that the outer section 27 should be broken off, it will be perceived that in order to effectively repair the cock, it will only be necessary to replace this particular part.

From the foregoing description, it is thought to be obvious that a gage cock constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, an it will also be obvious that my invention is susceptible of some change and modification without material departure from the its inner end and inwardly of certain of the perforations, and a stem projecting within the tubular valve member capable of longitudinal movement adapted to coact with the internal valve seat of the valve member, the diameter of the stem being less than the diameter of the bore of the valve member and the diameter of the valve mem her being less than the diameter of the bore of the barrel, said barrel being provided with a discharge opening.

2 A device of the character described co rising a casing adapted to be projected n a boiler and provided with an intern valve seat, a'barrel engaged with the outer extremity of the casing, an elongated bular valve member disposed through the barrel and capable of longitudinal movement, the inner end of said valve member being closed and adapted to coact with the vave seat within the casing, said tubular valve member being provided with perforations communicating with the bore thereof, said valve member being also provided with an internal valve seat in close proximity to its inner end and inwardly of certain of the perforations, a stem projecting within the tubular valve member and capable of longitudinal movement adapted to coact with the internal valve seat of the valve member, the diameter of the stem being less than the diameter of the bore of the valve member and the diameter of the valve member being less than the diameter of the bore of the barrel, said barrel being provided with a discharge opening, and means for imparting longitudinal movement to the valve member.

3. A device of the character described comprising a casing adapted to be projected within a boiler and provided with an internal valve seat, a barrel engaged with the outer extremity of the casing, an elongated tubular valve member disposed through the barrel and capable of longitudinal movement, the inner end of said valve member being closed and adapted to coact with the valve seat within the casing, said tubular valve member being provided with perforations communicating with the bore thereof, said valve member being also provided with an internal valve seat in close proximity to its inner end and inwardly of certain of the perforations, a stem pro ecting within the tubular valve member and capable of longitudinal movement adapted to coact with the internal valve seat of the valve member, the diameter .of the stem being less than the diameter of the bore of the valve member and the diameter of the valve member being less than the diameter of the bore of the barrel, said barrel being provided with a discharge opening, said casing being provided with a .second internal valve seat, a safety valve within the casing adapted to coact with the second valve seat, and means carried by the inner extremity of the valve member for maintaining said safety valve in open adjustment.

4. A device of the character described comprising a casing adapted to be projected Within a boiler and provided with an internal valve seat, abarrel engaged with the outer extremity of the casing, an elongated tubular valve member disposed through the barrel and capable of longitudinal movement, the inner end of said valve seat within the casing, said'tubular valve member being provided with perforations communicating with the bore thereof, said valve member being also provided with valve member 7 being closed and adapted to coact with the an internal valve seat in close proximity to its inner end and inwardl of certain of the perforations, a stem pro ecting within the tubular valve member and capable of longitudinal movement adapted to coact with the internal valve seat of the valve member, the

diameter of the stem being less than the diameter of the bore of the valve member.

adjustment, and means Within the casing coacting with the safety valve for maintaining the same against displacement.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

JOHN B. SEAGO. Witnesses:

R031. L. LINDSEY, W. M. LILIs. 

